[" Of the four numbers,whose "],[" avera...

[" Of the four numbers,whose "],[" average is "60," the first is one- "],[" fourth of the sum of the last three."],[" The first number is "]

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Of four numbers whose average is 60, the first is one-fourth of the sum of the last three.The first number is (a) 15 (b) 42 (c) 45 (d) 48

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